CN110469409A - A kind of assembly method based on flexible connecting structure component - Google Patents
A kind of assembly method based on flexible connecting structure component Download PDFInfo
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- CN110469409A CN110469409A CN201910812263.5A CN201910812263A CN110469409A CN 110469409 A CN110469409 A CN 110469409A CN 201910812263 A CN201910812263 A CN 201910812263A CN 110469409 A CN110469409 A CN 110469409A
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- ring group
- inner ring
- face
- flexible connecting
- connecting structure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/32—Arrangement, mounting, or driving, of auxiliaries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a kind of assembly method based on flexible connecting structure component, outer ring group and inner ring group end face are annular shape, and inner ring group diameter is less than outer ring group;Inner ring group and outer ring group are coaxially disposed;Pressure ring group end face is annular shape;1. selecting radial reference diameter B, the radial reference as inner ring group inner mold face C in the inner circle of outer ring group;2. processing inner ring group inner mold face C using the assembly mating surface in inner ring group as technological datum;3. preliminary connection;4. component is placed on rotatable device, radial reference diameter B is conllinear with rotatable device rotary shaft;5. unclamping fastening bolt, flexible connecting member is made to keep the nature not stressed;6. rotatable device rotates, in inner ring group inner mold face C leveling and adjusting to final jitter values target zone, stop operating;7. fastening fastening bolt, assembly is completed.Concentricity is difficult to control when solving the assembly of flexible connecting structure class component, decomposition reassembles the problems such as state change is big and unstable.
Description
Technical field
The invention belongs to aero-engines to manufacture assembly field, be related to a kind of assembly side based on flexible connecting structure component
Method.
Background technique
There is a kind of component of flexible connecting structure in aero-engine.Radially without accurately rigidity between its inside and outside each group
Centering constrains, and is in scattered state between each part, but also requires each group part after assembly concentric, and the inner mold face C of inner ring group
Face will meet design requirement relative to the radial reference jitter values of outer ring group, to keep working condition balance and stability.
In previous assembly, to guarantee that the inner mold face face the C circular runout of inner ring group after component assembles meets design requirement,
The method processed using assembled state, i.e., after first linking together except each group part of outer ring group, then entirety is assembled to outer ring
In group part, after forming big component, centering outer ring group benchmark is processed inner ring group in the assembled state and is required and outer ring group radial direction base
The inner mold face face C of quasiconcentric.Because this method is that component integrally after the assembly is completed again processes the inner mold face face C of inner ring group,
In this case iron filings entrance is had in some type chambers of component or gap, therefore is processed in the inner mold face face C to inner ring group
It needs again to split the whole component assembled after the completion, clean, then reassemble, detect and by testing result reprocessabilty again
Amendment.The inner mold face C that inner ring group is commonly present after reassembling is difficult to ensure in face of outer ring group radial reference concentricity, decomposes the state of reassembling
Change big and unstable, repeated disassembled and assembled flexible connecting member led to problems such as to scrap, organization of production it is difficult, for producing in batches or arranging
Therefore changing just more becomes technical bottleneck in the case that part is reprocessed.Its major defect: 1, process flow and tooling are complicated;2, concentricity is protected
Card is difficult;3, decomposition reassembles rear concentricity and is unable to control.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of based on flexible connecting structure component
Assembly method is improved by assembly technique, guarantee flexible connecting structure component assembly concentricity meet design requirement with
And the decomposition of such constitutional detail reassembles stability, so that concentricity is difficult to control when solving the assembly of flexible connecting structure class component
System, decomposition reassemble the problems such as state change is big and unstable.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of assembly method based on flexible connecting structure component, flexible connecting structure component include outer ring group, flexible company
Pipe fitting, inner ring group, pressure ring group and fastening bolt;
Outer ring group and inner ring group end face are annular shape, and inner ring group diameter is less than outer ring group,;Inner ring group and outer ring group are coaxial
Setting;Pressure ring group end face is annular shape;
Assembly includes the following steps;
Step 1 selectes a radial reference diameter B, the radial direction as inner ring group inner mold face C in the inner circle of outer ring group
Benchmark;
Step 2 assembles the part in inner ring group, and using in inner ring group and the assembly mating surface of pressure ring group is as work
Skill benchmark processes inner ring group inner mold face C, and the assembly mating surface and type face locating for outer ring group radial reference diameter B are coaxial;
Inner ring group and outer ring group are coaxially disposed by step 3, pass through flexible connection part connection;Pressure ring group inner circle and inner ring
Group outer circle fitting, inner ring group are connect with pressure ring group by fastening bolt;
Component assembled in step 3 is placed on rotatable device by step 4, is made radial reference diameter B and can be revolved
The rotary shaft of rotary device is conllinear;
Step 5 unclamps fastening bolt, and flexible connecting member is made to keep the nature not stressed;
Step 6, rotatable device start turning, by the target model of inner ring group inner mold face C leveling and adjusting to final jitter values
In enclosing, then stop rotatable device rotation;
Step 7 fastens fastening bolt, completes assembly.
Preferably, in step 6, dial gauge is zeroed in the inner ring group inner mold face face C any position first, then rotates zero
Part detects the bounce of the whole circle in the inner ring group inner mold face face C, shows the maximum position of oscillating quantity clockwise in dial gauge indicator, will
Inner ring group is adjusted toward along to center of circle direction;The maximum position of oscillating quantity is counterclockwise shown in dial gauge indicator, by inner ring group
It is adjusted toward along to away from center of circle direction, until by the target model of the inner ring group inner mold face C equal leveling and adjusting of whole circle to final jitter values
In enclosing, then stop rotatable device rotation.
Preferably, rotatable device is using bounce measuring tool.
Preferably, in step 4, the rotary shaft by component around rotatable device is rotated, and will be perpendicular to radial reference diameter B
Plane be bonded with the surfaces of revolution of rotatable device, adjust radial reference diameter B location, until radial reference diameter B with can revolve
The rotary shaft of rotary device is conllinear.
Preferably, in step 2, the inner mold face C after guaranteeing processing is not more than design requirement most to technological datum jitter values
Whole jitter values 40%.
Preferably, in step 6, the inner mold face C after leveling and adjusting wants radial datum diameter B jitter values no more than design
The final jitter values 75% asked.
Preferably, it needs to repeat step 3 to step 7 when being reassembled again after decomposition component inspection.
Further, after test run, after fault repair or when need to check a certain part, if you need to reprocess replacement inner ring group,
It is then processed by step 2, reassembles and completed by step 3 to step 7.
Preferably, flexible connecting member is divided into flexible connection part A and is flexibly connected part B, on the circumferential surface of outer ring group inner circle
Multiple flexible connection part A are evenly arranged with, each flexible connection part A is connect by being flexibly connected part B with inner ring group.
Preferably, it is flexibly connected part A and uses sector group, flexible connection part B is led using the interior of double spherical structures
Set.
Compared with prior art, the invention has the following advantages:
The present invention is improved by assembly technique, first processes the characteristic that design requirement need to process under unimodule state
After the completion, then the first dress of big component is carried out.Big component radial reference diameter after first dress is adjusted to the rotation with bounce measuring tool
After center is conllinear, release axially fastens bolt, and part is allowed to have the process of a stress release.Later again with the radial base of big component
Collimation diameter is benchmark face, has the part of the machined completion of adjustment of target, makes radial base of its machined surface relative to big component
The bounce in quasi- face requires gradually to be adjusted to target value.Therefore the shadow that erection stress requires the bounce of part end-state is avoided
It rings.Compared with the existing technology it is good to have the characteristics that assembly precision is high, decomposition reassembles controllable and stability;The class component can separately be simplified
Process flow and Combined machining tooling are suitable for being engineered Assembling Production, have the product for shortening the production cycle, improving product quality
Pole effect.
Detailed description of the invention
Fig. 1 is the structural representation sectional view of flexible connecting structure component of the invention;
Fig. 2 is the right view of Fig. 1 of the invention;
Fig. 3 is the component structure diagram of the embodiment of the present invention 1.
Wherein: 1- outer ring group;2- is flexibly connected part A;3- is flexibly connected part B;4- inner ring group;5- pressure ring assembly;6-
Fastening bolt;7- technological datum.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
Fig. 1-Fig. 3 only gives the top half structure chart of flexible connecting structure, and flexible connecting structure is in practice generally
Circular component.
Shown in Figure 1, flexible connecting structure component includes outer ring group 1, flexible connection part A2, flexible connection part
B3, inner ring group 4, pressure ring group 5 and fastening bolt 6.
It is annular shape that wherein outer ring group 1, which is benchmark workpiece end face, and 4 end face of inner ring group is all annular shape, and 4 diameter of inner ring group is small
In outer ring group 1;Flexible connection part A is sector group, and big end is connect with outer ring group 1, between small end and inner ring group 4
By being flexibly connected part B connection;It is flexibly connected the interior guide sleeve that part B is double spherical structures.5 end face of pressure ring group is annular shape,
Include block, baffle ring and pressure ring.
After molding, inner ring group 4 and outer ring group 1 are coaxially disposed, and are connected by flexible connection part A2 and flexible connection part B3
It connects, multiple flexible connection part A2 is evenly arranged on the circumferential surface of 1 inner circle of outer ring group, each flexible connection part A2 passes through flexibility
Union piece B3 is connect with inner ring group 4;Pressure ring group 5 is bonded with the assembly mating surface of inner ring group 4, i.e. 5 inner circle of pressure ring group and inner ring
Group 4 outer circles fitting, inner ring group 4 are connect with pressure ring group 5 by fastening bolt 6.
The purpose of this method is realized by following steps:
Step 1;Selected reference diameter: according to the design requirement and design feature of component, a diameter is determined in outer ring group 1
To datum diameter B.Because outer ring group 1 is benchmark workpiece, need to determine radial reference on benchmark workpiece, meanwhile, this radial direction
The benchmark benchmark that necessarily design drawing requires, is no longer needed for Reference Transforming, in this case so as to avoid Reference Transforming band
The cumulative errors come.
Step 2;The processing of the 4 inner mold face face C of inner ring group, the face C is the inner mold face of 4 part of inner ring group: first assembling inner ring group 4 needs
The part of assembly, when inner ring group 4 is assembled, using in inner ring group 4 and the assembly mating surface of pressure ring group 5 is as technological datum 7, the assembly
Mating surface and type face locating for 1 radial reference diameter B of outer ring group are coaxial, and technological datum 7 and the 4 inner mold face face C of inner ring group are coaxial, dress
With the mating surface that the corresponding face of cooperation diameter is when inner ring group 4 is assembled with other assemblies.This technological datum 7 of centering processes inner ring
The 4 inner mold face faces C of group guarantee that it is not more than the final jitter values 40% of design requirement to 7 jitter values of technological datum.
Step 3;First load connects: will need to guarantee concentric inner ring group 4 and flexible connecting member A, flexible connecting member B, pressure ring
Component 5, outer ring group 1 and fastening bolt 6 are assembled integrally.
Step 4;Hard-cover debugging:
A. the component that just load connects completion in step 3 is placed on rotatable device, rotatable device is surveyed using bounce
Tool, parts turn are bonded the face A of outer ring group 1 with the surfaces of revolution of rotatable device as bearing surface, and adjustment part makes radial base
It is conllinear with the bounce rotation center of measuring tool to collimate diameter B;The face A of outer ring group 1 is the plane perpendicular to radial reference diameter B.
B. it unclamps and is fastenedly connected, flexible connecting member A and flexible connecting member B is made all to keep the not nature by external force.
C. on the basis of radial reference diameter B, the inner ring group 4 completed the process is needed to keep concentric inner mold with benchmark B
The face face C leveling and adjusting beats table look-up to the value of design requirement, is adjusted control according to dial gauge indicator oscillating quantity, specifically,
Dial gauge is zeroed in the 4 inner mold face face C any position of inner ring group first, is then turned by bounce measuring tool around radial reference diameter B
Dynamic part, detects the bounce of the 4 whole circle in the inner mold face face C of inner ring group.In dial gauge indicator, display oscillating quantity is maximum clockwise
Position adjusts inner ring group 4 toward along to center of circle direction;The maximum position of oscillating quantity is counterclockwise shown in dial gauge indicator,
Inner ring group 4 is adjusted toward along to away from center of circle direction.Such process, until dial gauge indicator is in the 4 whole circle in the inner mold face face C of inner ring group
Until oscillating quantity is both less than the value of design requirement, stops part and rotated around radial reference diameter B.According to engineering experience, fasten tight
Before fixing bolt 6 when just debugging, the general technical process control value control by the final jitter values 75% no more than design requirement, because
For that, as far as possible by magnitude compression to achievable minimum state, numerical value can be put in the equipment adjustment stage later in single-piece work
It opens, but after all still during assembly, assembly is not fully finished, so technical process control value herein is still small
In the numerical value of design requirement.
D. axial fastening bolt 6 is fastened, assembly is completed.
Step 5;Detection: check whether the jitter values in the 4 inner mold face face C of inner ring group reach requirement;
After test run, after fault repair, step 3 and step 4 are repeated when needing to reassemble again after decomposition component inspection;
If troubleshooting is needed to reprocess renewal part, if you need to reprocess replacement inner ring group 4, then processes, reassembled by step by step 2
Three and step 4;If you need to reprocess the other parts replaced in addition to inner ring group 4, by step 3 and step 4.
Embodiment 1:
As shown in figure 3, the part to certain flexible connecting structure assembles, which includes outer ring group 1, flexible connection zero
Part A2, flexible connection part B3, inner ring group 4, pressure ring group 5 and fastening bolt 6.Wherein outer ring group 1 is benchmark workpiece, flexible connection
Part A2 is sector group, and flexible connection part A2 big end is connect with outer ring group 1, is flexibly connected part A2 small end and inner ring
By flexible connection part B3 connection between group 4, flexible connection part B3 is the interior guide sleeve of double spherical structures.Pressure ring group 5 includes
Block, baffle ring and pressure ring, inner ring group 4 are connect with pressure ring group 5 by fastening bolt 6.
It the steps include:
(1) it determines datum diameter: by component design drawing requirement, determining straight on the basis of the B on outer ring group 1 i.e. benchmark workpiece
Diameter.
(2) the 4 inner mold face face C of inner ring group processes: first assembling the part that need to assemble of inner ring group 4, determines when assembling in inner ring group 4
The rigidity assembly diameter coaxial with benchmark B determining in step (1) is technological datum 7.This technological datum 7 of centering processes inner ring
The 4 inner mold face faces C of group, it is final no more than design requirement in the technical process control value that this link provides according to engineering experience
Jitter values 40%.In this embodiment, the jitter values of design requirement are 0.20mm, accordingly, it is determined that 4 inner mold face C of inner ring group is to work
The jitter values of skill benchmark 7 are not more than 0.08mm.
(3) the cell cube component of A containing flexible connecting member, B are just filled, i.e. flexible connection part A2, flexible connection part B3, with
And pressure ring assembly 5, outer ring group 1, fastening bolt 6 and the inner ring group 4 completed the process.
(4) hard-cover adjustment:
A. the cell cube component after first dress is placed on rotatable device, with benchmark A bearing, centering radial reference diameter
B is conllinear with the rotation center of rotatable device.
B. it unclamps and axially fastens 6 groups of bolt, adjust and all flexible connecting members are not being playbacked under natural conditions by external force
To correct position, even if flexible connecting member A1 and flexible connecting member B3 are kept not by external force on the position of design requirement in assembly
Nature.
C. inner ring group 4 is adjusted, keeps its C Surface and the radial reference diameter B of outer ring group 1 concentric, according to engineering experience, herein
The technical process control value that the equipment adjustment stage provides is not more than the final jitter values 75% of design requirement.In this embodiment,
The jitter values of design requirement are 0.20mm, accordingly, it is determined that jump of the 4 inner mold face C of inner ring group to the radial reference diameter B of outer ring group 1
Dynamic value is not more than 0.15mm.
D. axial fastening bolt 6 is fastened, assembly is completed.
(5) it detects: checking that the inner mold face face the C bounce of inner ring group 4 is not more than 0.2mm.
After test run, after fault repair, by step (3) and step (4) when needing to reassemble again after decomposition component inspection.
If troubleshooting is needed to reprocess renewal part, if you need to reprocess replacement inner ring group 4, then processes, reassembled by step by step (2)
(3) and step (4);If you need to reprocess the other parts replaced in addition to inner ring group 4, by step (3) and step (4).
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of assembly method based on flexible connecting structure component, which is characterized in that flexible connecting structure component includes outer ring
Group (1), flexible connection part, inner ring group (4), pressure ring group (5) and fastening bolt (6);
Outer ring group (1) and inner ring group (4) end face are annular shape, and inner ring group (4) diameter is less than outer ring group (1) diameter;Inner ring group
(4) it is coaxially disposed with outer ring group (1);Pressure ring group (5) end face is annular shape;
Assembly includes the following steps;
Step 1 selectes a radial reference diameter B, the diameter as inner ring group (4) inner mold face C in the inner circle of outer ring group (1)
To benchmark;
Step 2 assembles the part in inner ring group (4), to make on inner ring group (4) with the assembly mating surface of pressure ring group (5)
For technological datum (7), inner ring group (4) inner mold face C is processed, locating for the assembly mating surface and outer ring group (1) radial reference diameter B
Type face is coaxial;
Inner ring group (4) and outer ring group (1) are coaxially disposed by step 3, pass through flexible connection part connection;Pressure ring group (5) inner circle
It is bonded with inner ring group (4) outer circle, inner ring group (4) is connect with pressure ring group (5) by fastening bolt (6);
Component assembled in step 3 is placed on rotatable device, makes radial reference diameter B and rotatable dress by step 4
The rotary shaft set is conllinear;
Step 5 is unclamped fastening bolt (6), and flexible connecting member is made to keep the nature not stressed;
Step 6, rotatable device start turning, by the target model of inner ring group (4) inner mold face C leveling and adjusting to final jitter values
In enclosing, then stop rotatable device rotation;
Step 7 fastens fastening bolt (6), completes assembly.
2. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that step 6
In, dial gauge is zeroed in the inner ring group inner mold face face C any position first, then rotational parts detect the inner ring group inner mold face face C
The bounce of whole circle, in the dial gauge indicator display maximum position of oscillating quantity clockwise, by inner ring group toward along to center of circle direction
Adjustment;The maximum position of oscillating quantity is counterclockwise shown in dial gauge indicator, by inner ring group toward along to away from center of circle direction tune
It is whole, until then stopping to revolve in the equal leveling and adjusting to the target zone of final jitter values of circle that inner ring group (4) inner mold face C is whole
Rotary device rotation.
3. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that rotatable
Device is using bounce measuring tool.
4. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that step 4
In, the rotary shaft by component around rotatable device rotates, and will be perpendicular to the plane of radial reference diameter B and the rotation of rotatable device
Turn face paste conjunction, radial reference diameter B location is adjusted, until radial reference diameter B is conllinear with the rotary shaft of rotatable device.
5. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that step 2
In, the inner mold face C after guaranteeing processing is not more than the final jitter values 40% of design requirement to technological datum (7) jitter values.
6. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that step 6
In, the inner mold face C after leveling and adjusting is not more than the final jitter values 75% of design requirement to radial datum diameter B jitter values.
7. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that need to divide
Step 3 is repeated to step 7 when being reassembled again after solution component inspection.
8. a kind of assembly method based on flexible connecting structure component according to claim 7, which is characterized in that work as test run
Afterwards, it after fault repair or when need to check a certain part, if you need to reprocess replacement inner ring group (4), then processes, reassembles by step 2
It is completed by step 3 to step 7.
9. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that flexibility is even
Fitting is divided into flexible connection part A (2) and flexible connection part B (3), is evenly arranged on the circumferential surface of outer ring group (1) inner circle more
A flexible connection part A (2), each flexible connection part A (2) are connect by being flexibly connected part B (3) with inner ring group (4).
10. a kind of assembly method based on flexible connecting structure component according to claim 1, which is characterized in that flexible
Union piece A (2) uses sector group, and flexible connection part B (3) uses the interior guide sleeve of double spherical structures.
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CN112196636A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Engine deflation mechanism assembling method based on tightening ejection tool and tightening ejection tool |
CN113431703A (en) * | 2021-06-30 | 2021-09-24 | 中国航发动力股份有限公司 | Composite assembling method of multilayer assembling structure |
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